82 CJ7 Dana 30 4.88 gear change question - JeepForum.com
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post #1 of 6 Old 01-14-2016, 01:58 PM Thread Starter
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1982 CJ7 
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82 CJ7 Dana 30 4.88 gear change question

I recently aquired an ARB locker with 4.88 gears on it. Question is do I need a new carrier for the front Dana 30 to go from 2.73 to 4.88. Yukon gears website isn't that helpful.

Any tips or tricks on installing the locker would be welcome.

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post #2 of 6 Old 01-14-2016, 02:23 PM
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Yes, the carrier break for the Dana 30 is 3.54 and down (numerically) and 3.73 and up.

Google ARB installation for starters. The correct pre-load is critical to the ARB working like it should.
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post #3 of 6 Old 01-14-2016, 04:23 PM
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CSP is correct on the break. Here is the link to the Yukon part.


80 CJ-5, 74 CJ-6, 56 CJ-5
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post #4 of 6 Old 01-15-2016, 10:35 AM Thread Starter
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Thanks for the replies. I already googled and down loaded the manual. Was more looking for experience type tips.

Thanks for the link

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post #5 of 6 Old 01-15-2016, 10:40 AM
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1978 CJ5 
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Big prybar to pop carrier out, dead blow to smack it back in. Tools needed: Digital vernier caliper, dial indicator, 10-30 inch lb and 40-220 ft lb torque wrench, bearing puller, hydraulic press. There's more just can't remember off top of head.

Set up bearings for quicker easier shim changes. Mix your gear marking compound with some gear oil to thin it a little and put as much force on the gears as you can muster to give a nice clear pattern. This force also helps ensure you've removed all slop from the bearings by adding the appropriate amount of shims. If there is hidden slop your unaware of, it will show itself.

Don't set backlash too tight, you'll burn up the gears. Oil won't make it in between the gear teeth. Don't set backlash too loose. The contact pattern will migrate with accumulated mileage and roll off the edge of the teeth much sooner than if it had been set nominal.


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post #6 of 6 Old 01-15-2016, 05:17 PM
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1983 CJ7 
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I've seen a few videos on YouTube for setting preload and backlash. And they seem to do things differently. Is there a recommended video that you guys can suggest?
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